CA2278510C - Paliers magnetiques electrodynamiques - Google Patents

Paliers magnetiques electrodynamiques Download PDF

Info

Publication number
CA2278510C
CA2278510C CA002278510A CA2278510A CA2278510C CA 2278510 C CA2278510 C CA 2278510C CA 002278510 A CA002278510 A CA 002278510A CA 2278510 A CA2278510 A CA 2278510A CA 2278510 C CA2278510 C CA 2278510C
Authority
CA
Canada
Prior art keywords
magnets
magnet
magnetic bearing
magnetic
rotation symmetric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CA002278510A
Other languages
English (en)
Other versions
CA2278510A1 (fr
Inventor
Torbjorn Lembke
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Magnetal AB
Original Assignee
Magnetal AB
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Magnetal AB filed Critical Magnetal AB
Publication of CA2278510A1 publication Critical patent/CA2278510A1/fr
Application granted granted Critical
Publication of CA2278510C publication Critical patent/CA2278510C/fr
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C32/00—Bearings not otherwise provided for
    • F16C32/04—Bearings not otherwise provided for using magnetic or electric supporting means
    • F16C32/0406—Magnetic bearings
    • F16C32/0408—Passive magnetic bearings
    • F16C32/0436—Passive magnetic bearings with a conductor on one part movable with respect to a magnetic field, e.g. a body of copper on one part and a permanent magnet on the other part
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C2300/00—Application independent of particular apparatuses
    • F16C2300/02—General use or purpose, i.e. no use, purpose, special adaptation or modification indicated or a wide variety of uses mentioned
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
    • Y02B10/00—Integration of renewable energy sources in buildings
    • Y02B10/20—Solar thermal

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Magnetic Bearings And Hydrostatic Bearings (AREA)

Abstract

L'invention concerne un dispositif permettant la suspension magnétique d'un rotor (10, 20, 30) dans un mouvement de rotation par rapport à un stator (14, 24, 26, 34, 36) le long d'une trajectoire à symétrie de rotation déterminée. Le rotor (10, 20, 30) comprend un corps rotatif (11, 21, 31) constitué essentiellement d'un matériau non magnétique et électriquement conducteur. Le stator (14, 24, 26, 34, 36) est équipé d'au moins un moyen magnétique (12, 22, 25, 32, 35) comprenant au moins un aimant à symétrie de rotation (12, 22, 25, 32, 35) et concentrique avec l'axe de rotation. Ce moyen magnétique est placé de façon à produire un champ magnétique à symétrie de rotation et concentrique avec l'axe de rotation. Si et seulement si le corps rotatif (11, 21, 31) a tendance à quitter la trajectoire déterminée et pivote de façon excentrique, le champ magnétique génère des courants de Foucault induits dans le corps rotatif (11, 21, 31), ces courants de Foucault donnant naissance à des forces stabilisatrices de rappel.
CA002278510A 1997-01-28 1998-01-23 Paliers magnetiques electrodynamiques Expired - Fee Related CA2278510C (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
SE9700255-4 1997-01-28
SE9700255A SE508442C2 (sv) 1997-01-28 1997-01-28 Elektrodynamiskt magnetlager
PCT/SE1998/000100 WO1998032981A1 (fr) 1997-01-28 1998-01-23 Paliers magnetiques electrodynamiques

Publications (2)

Publication Number Publication Date
CA2278510A1 CA2278510A1 (fr) 1998-07-30
CA2278510C true CA2278510C (fr) 2007-10-16

Family

ID=20405555

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002278510A Expired - Fee Related CA2278510C (fr) 1997-01-28 1998-01-23 Paliers magnetiques electrodynamiques

Country Status (10)

Country Link
US (1) US6118199A (fr)
EP (1) EP0956457B1 (fr)
JP (1) JP3057047B2 (fr)
AU (1) AU5788198A (fr)
CA (1) CA2278510C (fr)
DE (1) DE69823647T2 (fr)
MY (1) MY118179A (fr)
SE (1) SE508442C2 (fr)
TW (1) TW471568U (fr)
WO (1) WO1998032981A1 (fr)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19823630C2 (de) * 1998-05-27 2003-08-21 Pmdm Prec Motors Deutsche Mine Motorlager für schnelldrehende Kleinmotoren
US6416215B1 (en) 1999-12-14 2002-07-09 University Of Kentucky Research Foundation Pumping or mixing system using a levitating magnetic element
US6758593B1 (en) 2000-10-09 2004-07-06 Levtech, Inc. Pumping or mixing system using a levitating magnetic element, related system components, and related methods
US7086778B2 (en) * 2000-10-09 2006-08-08 Levtech, Inc. System using a levitating, rotating pumping or mixing element and related methods
US6469411B2 (en) * 2000-12-15 2002-10-22 Magnetal Ab Compliant foil fluid film bearing with eddy current damper
US6641378B2 (en) * 2001-11-13 2003-11-04 William D. Davis Pump with electrodynamically supported impeller
AU2003241444A1 (en) 2003-05-15 2005-01-21 William Davis Pump with magnetic bearings
DE10333733A1 (de) * 2003-07-23 2005-02-24 Forschungszentrum Jülich GmbH Magnetisches Lagerelement
EP3477103B1 (fr) 2006-01-13 2022-03-02 HeartWare, Inc. Pompe sanguine rotative
US8672611B2 (en) 2006-01-13 2014-03-18 Heartware, Inc. Stabilizing drive for contactless rotary blood pump impeller
DE102007036692A1 (de) 2006-09-22 2008-03-27 Ebm-Papst St. Georgen Gmbh & Co. Kg Lüfter
DE102007020274B4 (de) * 2007-04-30 2009-04-02 Siemens Ag Messsystem zum Erfassen einer Dreh-Linear-Bewegung und entsprechender Drehlinearantrieb
JP2009014084A (ja) * 2007-07-03 2009-01-22 Jtekt Corp 軸受装置およびこれを備えた遠心圧縮機
US20100109463A1 (en) * 2008-10-31 2010-05-06 University Of Virginia Patent Foundation Hybrid Five Axis Magnetic Bearing System Using Axial Passive PM Bearing Magnet Paths and Radial Active Magnetic Bearings with Permanent Magnet Bias and Related Method
EP2490796B1 (fr) 2009-10-21 2023-09-20 Metenova Holding AB Dispositif d'agitation
DE102010041328A1 (de) 2010-09-24 2012-03-29 Siemens Aktiengesellschaft Vorrichtung und Verfahren zum gedämpften, berührungslosen Lagern einer Kühlmittelzuführung für supraleitende Maschinen
PL394800A1 (pl) 2011-05-06 2012-11-19 Pawel Krzysztof Licznerski Lozysko magnetyczne i sposób dzialania lozyska magnetycznego
EP2887022B1 (fr) 2013-12-20 2016-09-07 Skf Magnetic Mechatronics Cible de capteur de rotor pour paliers magnétiques
US9739307B2 (en) 2014-11-28 2017-08-22 Lawrence Livermore National Security, Llc Non-contacting “snubber bearing” for passive magnetic bearing systems
CN108286569A (zh) * 2018-01-17 2018-07-17 上海浩灵磁电器件有限公司 偏心外环卧式永磁轴承

Family Cites Families (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US611809A (en) * 1898-10-04 eyershed
DE1933031C3 (de) * 1969-06-30 1978-10-26 Karl 5170 Juelich Boden Magnetische Lagerung
US3611815A (en) * 1969-12-24 1971-10-12 Us Navy Frictionless gyroscope
US3885504A (en) * 1971-01-09 1975-05-27 Max Baermann Magnetic stabilizing or suspension system
GB1379987A (en) * 1971-02-26 1975-01-08 Comitato Nazionale Per Lenergi Magnetic suspension devices
US3811740A (en) * 1971-04-24 1974-05-21 Cnen Self-centering rotary magnetic suspension device
DE2160666B2 (de) * 1971-12-07 1973-09-27 Siemens Ag, 1000 Berlin U. 8000 Muenchen Elektrodynamisches Magnetsystem fur die Schwebeführung eines bewegten Fahr Zeugs
US3937148A (en) * 1973-01-02 1976-02-10 Cambridge Thermionic Corporation Virtually zero power linear magnetic bearing
US3955858A (en) * 1974-01-03 1976-05-11 Societe Nationale Industrielle Aerospatiale Satellite momentum wheel
DE2401625A1 (de) * 1974-01-14 1975-07-24 Siemens Ag Magnetsystem zur beruehrungsfreien fuehrung eines bewegten fahrzeugs
JPS58109719A (ja) * 1981-12-23 1983-06-30 Hitachi Ltd 磁気軸受
US4700094A (en) * 1984-12-17 1987-10-13 The Charles Stark Draper Laboratory, Inc. Magnetic suspension system
FR2598866A1 (fr) * 1986-05-14 1987-11-20 Alsthom Dispositif de sustentation electromagnetique
US5469006A (en) * 1992-09-25 1995-11-21 Magnetic Bearing Technologies, Inc. Lorentz force magnetic bearing utilizing closed conductive loops and selectively controlled electromagnets
SE9203090L (sv) * 1992-10-22 1994-04-18 Torbjoern Lembke Virvelströmsinducerande magnetlager samt en användning av lagret
US5396136A (en) * 1992-10-28 1995-03-07 Sri International Magnetic field levitation
JP3961032B2 (ja) * 1993-12-13 2007-08-15 シーメンス アクチエンゲゼルシヤフト 回転子軸の磁気軸受装置
US5495221A (en) * 1994-03-09 1996-02-27 The Regents Of The University Of California Dynamically stable magnetic suspension/bearing system
US5783885A (en) * 1995-08-07 1998-07-21 The Regents Of The University Of California Self-adjusting magnetic bearing systems

Also Published As

Publication number Publication date
EP0956457B1 (fr) 2004-05-06
JPH10281158A (ja) 1998-10-20
SE9700255L (sv) 1998-07-29
US6118199A (en) 2000-09-12
EP0956457A1 (fr) 1999-11-17
AU5788198A (en) 1998-08-18
CA2278510A1 (fr) 1998-07-30
DE69823647T2 (de) 2005-04-21
JP3057047B2 (ja) 2000-06-26
DE69823647D1 (de) 2004-06-09
SE508442C2 (sv) 1998-10-05
SE9700255D0 (sv) 1997-01-28
MY118179A (en) 2004-09-30
TW471568U (en) 2002-01-01
WO1998032981A1 (fr) 1998-07-30

Similar Documents

Publication Publication Date Title
CA2278510C (fr) Paliers magnetiques electrodynamiques
US6657344B2 (en) Passive magnetic bearing for a horizontal shaft
US6359357B1 (en) Combination radial and thrust magnetic bearing
JP2644374B2 (ja) 磁気軸受構造体
IE56198B1 (en) Magnetic bearing for the triaxial positional stabilization of bodies
US5196748A (en) Laminated magnetic structure for superconducting bearings
US5894181A (en) Passive magnetic bearing system
US5250865A (en) Electromagnetic thrust bearing for coupling a rotatable member to a stationary member
US6111332A (en) Combined passive bearing element/generator motor
US6877963B2 (en) Vacuum pump
AU2003245151B2 (en) Device to relieve thrust load in a rotor-bearing system using permanent magnets
US7078838B2 (en) Passive magnetic bearing for a motor-generator
JP2008537872A (ja) 磁気的に浮上される物体を安定化させるための方法
WO1992021175A1 (fr) Ensembles constitues par des aimants et un supraconducteur et possedant une poussee et une stabilite elevees
US6050782A (en) Magnetically suspended high velocity vacuum pump
EP0687827A1 (fr) Palier magnétique hybride feuilles/gaz
WO2001084693A1 (fr) Systeme de support magnetique a levitation totale dote de paliers magnetiques radiaux passifs
US20080100162A1 (en) Magnetic Bearings
Fremerey Radial shear force permanent magnet bearing system with zero-power axial control and passive radial damping
JP3138696B2 (ja) 軸受構造
JPH1137155A (ja) 磁気軸受およびその制御系
US5789838A (en) Three-axis force actuator for a magnetic bearing
JPH0226310A (ja) 磁気スラスト軸受
JP2006153037A (ja) 磁気軸受装置
JPS63210414A (ja) 磁気軸受装置

Legal Events

Date Code Title Description
EEER Examination request
MKLA Lapsed

Effective date: 20180123